EXS
User Manual 10H52260UM60 - Rev. 1 - 10/2017
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Figure 7-2 Parallel signal cable connections (Parallel system)
Note
1. VERTIV parallel cables must be used for the parallel system.
2. If a parallel communication fault occurs during parallel commissioning or operation, switch the system off and check
whether the parallel cables are connected correctly.
3. Do not attempt to disconnect the parallel cables while the parallel system is operating as this could damage the system.
7.3
Operating Procedures for Parallel Systems
Warning
If UPS the input uses RCD devices, the differential switch should only used on the system bypass mains supply. At the
moment of electrical connection, current may not be immediately separated, which may cause the respective RCCB devices
to trip.
Proceed one step at a time, and only move on to the next time when the current operation has been completed for
all the UPS modules in the system.
Start-up Procedures In Normal Mode
These procedures are used to start the UPS starting from the fully switched off condition, which means that neither
the UPS or the maintenance bypass switch have supplied power to the load before. Make sure UPS has been
completely installed and commissioned by the engineer, and the external power supply switch is in the off position
Warning
